Well, in the wizarding community outside Hogwarts, Harry's death in the first task of the fanfiction could cause a great deal of unrest. The Weasley family, who has become close to Harry, would be heartbroken. And Dumbledore's plans for Harry, which were not fully known but surely had something to do with the fight against the dark forces, would be completely derailed. It could also lead to a change in the way the Triwizard Tournament is perceived, and there might be investigations into the safety and fairness of the event.
One possible consequence could be chaos at Hogwarts. The school has high hopes for Harry in the Triwizard Tournament. His death would shock the students and teachers. The other champions might feel guilty or be blamed. Also, Voldemort's plans related to Harry would be disrupted, as he was supposed to be a major part in the wizarding world's future battles against the Dark Lord.
If Harry dies in the first task in fanfic, it would completely change the whole story. For one, Hogwarts would lose its hero. The Triwizard Tournament would be thrown into chaos. Cedric might become the sole focus then, but he also would be in shock as Harry was his competitor and also a fellow student. And Voldemort's plans related to Harry would be thwarted, at least for the time being, as he had some long - term designs involving Harry. It would also have a huge impact on Harry's friends, like Ron and Hermione. They would be devastated and might try to find out the real cause of his death.
Well, it would have a huge impact on the wizarding world as a whole. The Ministry of Magic would be in an uproar. They had high hopes for Harry and his role in the future of the wizarding community. His death could also lead to a change in the way Hogwarts approaches the Triwizard Tournament in the future. There would be a lot more safety regulations and restrictions. And his death would leave a big emotional void in the hearts of those who knew him, like Hagrid who had a special bond with Harry.
The plot could develop in a very different direction. For example, Voldemort might gain an advantage as Harry was seen as a major threat. Without Harry, the other characters would have to step up to fight against the Dark forces. Hermione and Ron might become more central characters in the fight against evil.
Ron and Hermione would be completely shattered. Ron, who had been Harry's friend since the beginning, would probably be in denial at first. Hermione would likely try to figure out what exactly happened. Dumbledore would be solemn and would try to keep the school calm while also investigating the matter. Hagrid would be inconsolable, crying his eyes out. The other students would be in a state of shock and sadness. The teachers would also be deeply affected, especially those who had taught Harry or had some connection with him.
Harry might face a lot of criticism. The wizarding community might think he's being naive by bringing back Pettigrew. There's also the risk that Pettigrew could double - cross him. After all, Pettigrew has a history of betraying those who trust him. This could put Harry in a very difficult situation, especially if Pettigrew lies about Harry or tries to frame him for something.
A tragic ending could be that Harry's death leads to the fall of the good side in the wizarding war. His friends, demoralized by his loss, are unable to fight back effectively against the dark forces.
He might get confused. Fanfiction often takes the original story in different directions, with different characterizations and plot twists. If Harry reads it, he might start to question the 'true' nature of his own experiences and the people around him.
One consequence could be that he endangers himself. Maybe he disobeys a warning not to enter a certain dark forest in the fanfiction. As a result, he could encounter dangerous magical creatures or dark wizards. Another outcome is that his disobedience might lead to a rift in his relationships. If he doesn't follow the advice of his mentors like Dumbledore in the fan - made story, it can cause tension between them.
The playing of memories could also have a negative impact. If the memories are too distracting or if they make him overthink, it could lead to mistakes. For instance, if he gets too caught up in the memories of a champion who failed, it might make him nervous and cause him to make errors during the first task.
If Naruto dies in the fanfic, Boruto would likely face a great emotional turmoil. He would have to grow up without his father's guidance, which could make his journey to become a ninja even more challenging. Also, the Hidden Leaf Village would lose its strongest protector, which might lead to a sense of insecurity among the villagers.